#include "apue.h"
#include <fcntl.h>

int main(int argc, char *argv[])
{
    if (argc !=2) err_quit("usage: a.out <pathname>");

    if (access(argv[1], R_OK) < 0) err_ret("access error for %s", argv[1]);
    else printf("read access OK\n");
    
    if (open(argv[1], O_RDONLY) < 0) err_ret("open error for %s", argv[1]);
    else printf("open for readding OK\n");
    exit(0);
}
